diff --git a/README.md b/README.md index 589a067..d76bd97 100644 --- a/README.md +++ b/README.md @@ -76,7 +76,7 @@ Scope - 🔹 Important or often overlooked tip - ❗ Gotcha or warning (where risks or time or resource costs are significant) - 🔸 Limitation or quirk (where it’s not quite so bad) - - 🐥 Relatively new or immature services + - 🐥 Relatively new (and perhaps immature) services or features - ⏱ Performance discussions - ⛓ Lock-in: Products or decisions that are likely to tie you to AWS in a new or significant way — that is, later moving to a non-AWS alternative would be costly in terms of engineering effort - 🚪 Alternative non-AWS options @@ -843,7 +843,7 @@ Load Balancers ### ALB Basics - 📒 [Homepage](https://aws.amazon.com/elasticloadbalancing/applicationloadbalancer/) ∙ [User guide](https://aws.amazon.com/elasticloadbalancing/applicationloadbalancer/developer-resources/) ∙ [FAQ](https://aws.amazon.com/elasticloadbalancing/applicationloadbalancer/faqs/) ∙ [Pricing](https://aws.amazon.com/elasticloadbalancing/applicationloadbalancer/pricing/) -- **Websockets and HTTP/2** are [now supported](https://aws.amazon.com/blogs/aws/new-aws-application-load-balancer/). +- 🐥**Websockets and HTTP/2** are [now supported](https://aws.amazon.com/blogs/aws/new-aws-application-load-balancer/). - Prior to the Application Load Balancer, you were advised to use TCP instead of HTTP as the protocol to make it work (as described [here](http://www.quora.com/When-will-Amazon-ELB-offer-SPDY-support)) and use [the obscure but useful Proxy Protocol](http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/enable-proxy-protocol.html) ([more on this](https://chrislea.com/2014/03/20/using-proxy-protocol-nginx/)) to pass client IPs over a TCP load balancer. ### ALB Tips @@ -1124,6 +1124,7 @@ CloudFront ### CloudFront Tips +- 🐥**HTTP/2** is [now supported](https://aws.amazon.com/about-aws/whats-new/2016/09/amazon-cloudfront-now-supports-http2/)! Clients [must support TLS 1.2 and SNI](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/distribution-web-values-specify.html#DownloadDistValuesSupportedHTTPVersions). - While the most common use is for users to browse and download content (GET or HEAD methods) requests, CloudFront also supports ([since 2013](https://aws.amazon.com/blogs/aws/amazon-cloudfront-content-uploads-post-put-other-methods/)) uploaded data (POST, PUT, DELETE, OPTIONS, and PATCH). - You must enable this by specifying the [allowed HTTP methods](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/distribution-web-values-specify.html#DownloadDistValuesAllowedHTTPMethods) when you create the distribution. - Interestingly, the cost of accepting (uploaded) data [is usually less](https://aws.amazon.com/cloudfront/pricing/) than for sending (downloaded) data. @@ -1135,7 +1136,6 @@ CloudFront ### CloudFront Gotchas and Limitations -- HTTP/2 is not yet supported. - If using S3 as a backing store, remember that the endpoints for website hosting and for general S3 are different. Example: “bucketname.s3.amazonaws.com” is a standard S3 serving endpoint, but to have redirect and error page support, you need to use the website hosting endpoint listed for that bucket, e.g. “bucketname.s3-website-us-east-1.amazonaws.com” (or the appropriate region). DirectConnect